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Simplifying 20x2 + -16y2 = -320 Solving 20x2 + -16y2 = -320 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '16y2' to each side of the equation. 20x2 + -16y2 + 16y2 = -320 + 16y2 Combine like terms: -16y2 + 16y2 = 0 20x2 + 0 = -320 + 16y2 20x2 = -320 + 16y2 Divide each side by '20'. x2 = -16 + 0.8y2 Simplifying x2 = -16 + 0.8y2 Reorder the terms: 16 + x2 + -0.8y2 = -16 + 0.8y2 + 16 + -0.8y2 Reorder the terms: 16 + x2 + -0.8y2 = -16 + 16 + 0.8y2 + -0.8y2 Combine like terms: -16 + 16 = 0 16 + x2 + -0.8y2 = 0 + 0.8y2 + -0.8y2 16 + x2 + -0.8y2 = 0.8y2 + -0.8y2 Combine like terms: 0.8y2 + -0.8y2 = 0.0 16 + x2 + -0.8y2 = 0.0 The solution to this equation could not be determined.
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